电网不平衡时同步谐波检测法优化研究  

Optimized Synchronous Harmonic Detection Algorithm under Unbalanced Grid Voltage

作　　者：刘娟[1] 孙传达 马小鹏 徐欢庆 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008 [2]国网平凉供电公司,甘肃平凉744000

出　　处：《电气传动》2016年第4期37-41,共5页Electric Drive

摘　　要：在电网不平衡时提出一种优化的同步谐波检测法。通过引入不同要求下的电导因子来实现完美谐波补偿(PHC)和单位功率因数补偿(UPF);可实现对奇、偶次谐波含量的单独控制;同时系统还具有良好的动态响应能力和稳定性能。该算法同时适用于三相三线制APF平衡和不平衡系统。详细介绍了这种优化谐波电流检测算法推导过程。建立了三相三线制APF数学模型,通过仿真和实验验证了所提控制算法的可行性。An optimized synchronous harmonic detection algorithm under unbalanced grid voltage was proposed. The perfect harmonic compensation （PHC） and unity power factor correction （UPF） were achieved by introducing conductive factors under different requirement situationsl Individually control on odd and even harmonics could be realized according to the needs of user and a good dynamic performance and stability could also be achieved. The proposed method could be applied to both balanced and unbalanced system for three-phase three-wire APF. The optimized harmonic detection algorithm was described in detail and the model for a three-phase three-wire APF was established. Simulation and experiment show the correctness of this algorithm.

关 键 词：三相电网不平衡 谐波检测 电导因子 有源电力滤波器 

分 类 号：TM712[电气工程—电力系统及自动化]